Beveling-machine.



No. 737,333. PATENTED AUG. 25, 1003..

0. L. 0013133100 & w. TROOHE.

BBVELING MACHINE.

7 APPLICATION FILED JULY 24, 1902.

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No. 737,388. PATENTED AUG. 25, 1903.

' G. L. GOEHRING & W. TRO GHE.

BEVBL ING MACHINE.

APPLICATION FILED JULY 24, 1902. N0 MODEL. 2 SHEEN-SHEET 2.

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UNITED STATES Patented August 25, 1903.

PATENT OFFICE.

CHARLES L. GOEHRING AND WILLIAM TROCHE, OFAKRON, OHIO; SAID TROCHE ASSIGNOR TO SAID GOEHRING.

MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 737,388, dated August 25, 1903.

Application filed July 24. 1902. Serial No. 116,806. (No model.)

To all whom. it may concern:

Be it known that we, CHARLES L. GOEHRING and WILLIAM TROOHE,0f Akron, in the county of Summit, State of Ohio, have invented certain new and useful Improvements in Beveling-Machines; and we do hereby declare the following to be a full,'clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the letters of reference marked thereon.

This invention relates to improvements in grinding machinery, and particularly to that class of grinding machinery adapted for beveling the edges of plates of glass and like material.

The invention has for its object to provide a mechanism which will grind a straight or plane bevel as contradistinguished from a hollow bevel. I

To these ends the invention consists in giving the stone or grinder a bodily movement in the plane of the bevel in addition to its rotary movement and,if desired,an additional movement longitudinally of its axis to secure a diagonal cutting action.

The invention further consists in certain novel details of construction and combinations and arrangements of parts, all as will be hereinafter described,and pointed out particularly in the appended claims.

Referring to the accompanying drawings, Figure 1 is a side elevation of a glass-beveling machine embodying my present improvements, portions not necessary to an understanding of the present invention being omitted. Fig. 2 is a top plan View of the grinder.

and its operating mechanism. Fig. 3 is a detail of the adjustable elevating-cam and the support. Fig. 4 is a detail, on an enlarged scale, of the mechanism for moving the stone longitudinally of its axis.

Like letters of reference in the several figures indicate the same parts. 7

The main frame of the machine (lettered A in Fig. 1) is adapted to carry the work-support or table B and the grinder-frame O, the latter being pivotally mounted at its rear end in adjustable bearings D, so as to swing vertically. The frame 0 is raised or lowered by a hand-lever O and, if desired, may be counterbalanced by a weight 0 The frame 0 at its forward end carries a shaft E, on which thegrinder or stone F is mounted, preferably rigidly, the shaft and stone receiving a rotary motion, preferably through the medium of a sprocket-chain e passing over sprocket-wheels 6 6 one on the shaft E and the other on a drive-shaft G, the latter receiving its motion through pulleys G, as usual.

The work is mounted on a support H, adapted to be adjusted horizontally to accommodate work of differing size or shape and to be fed vertically by a screw H, under the control of a transverse shaft H", which may be rotated by a hand-wheel H or power mechanism, as desired.

The machine as thus far described corresponds to the machine set forth more in detail in the contemporaneous application, Serial No. 110,660, filed June 7, 1902, as a continuation of application Serial No. 48,342, filed February 21, 1901; but the foregoing, in connection with the accompanying drawings, will be sufficient for an understanding of the present invention.

In grinding bevels it is highly desirable that the surface of the bevel should be as nearly as practicable flat or in a single-plane, and to accomplish this desirable result the grinder in the present machine is given a bodily movement in the plane of the bevel, whereby the major cutting-point is caused to travel from one edge to the other of the bevel, reducing the face of the bevel to a fiat surface. Obviously the desired result may be accomplished by a single reciprocation or bodily movement of the grinder when the full depth of the cut is taken at one operation or by a series of reciprocations or bodily movements, each of which will. remove a given depth of the surface, and the mechanism for giving the bodily movement to the grinder preferably consists of an elevating mechanism and an advancing mechanism, said mechanisms being connected for simultaneous operation and giving as a resultant the bodily movement of the grinder in the desired plane of the bevel. Adjusting mechanism is provided in connection with said elevating and advancing mechanism,whereby either or both may be adjusted to vary either the angle of the bevel or the range of movement of the grinder.

The elevating mechanism preferably consists of a cam or eccentric M, mounted on a stud'axle m, journaled in the frame 0, said cam or eccentric being adapted to rest on a support or bracket N, extending up from the main frame, while to move the grinder for wardly and backwardly its shaft E is journaled in boxes 0, mounted on slideways running longitudinally of the frame 0, said wheels Q'are provided, adapted to mesh with gear-wheels Q on a transverse shaft Q The shaft Q is rotated by miter-gears B, one of which is carried by a shaft R, extending back to the rear end of the frame 0 and adapted to carry a' miter-gear R meshing with a corresponding gear R on the drive-shaft G. The relative proportions of the driving-gears will of course determine the rate of bodily movement of the grinder, and by adjusting the range of movement of the elevating or advancing mechanism, or both, the angle of the cut may be set as desired.

The adjustments last mentioned may be made by mounting the cams or eccentrics M adjustablyon their'shafts, as by forming slots M in each, mounting boxes M for the shafts in said slots, and providing adjusting-screws M for connecting the boxes and eccentrics, whereby the eccentricity and consequent extent of movementimparted by the eccentrics to the frame and grinder may be varied. The forward-and-backward movement of the grinder may be varied by making the crankpin 10 adjustable, as by a screw 19, in the wellunderstood manner.

In addition to the movements of the grinder already described it is desirable in order to secure the best results that the grinder should be given a movement longitudinally of its axis, whereby the cutting-surface is given a diagonal instead of straight movement across the bevel. To secure this movement without interfering with the movements of the grinder heretofore described, the shaft E is mounted to slide longitudinally in its bearings, and near one end it is provided with a collar or enlargement R, Fig. 4, having a cam-groove therein, into which groove fixed projections, preferably consisting of antifriction-rollers S, carried by screws S, project. The groove is formed to move the shaft back and forth axially during each revolution.

The height of the bracket N may be adjusted by a screw N to vary the level of the working face-of the grinder or to conform to the table adjustment, or the table or workholder may be adjusted vertically to accomplish the same end.

Theoperation is obvious,inasmuch as when the work has been positioned the grinder will cut away the edge and traveling, as it does, bodily in the plane of the bevel will leave a perfectly flat surface, which may be then finished as described in the aforesaid contemporaneous application or in any other approved manner when so desired.

Having thus described our invention and in what manner the same is to be performed, we declare that what we claim as new is 1. In a beveling-machine, the combination with a rotary grinder,a pivoted grinder-frame and bearings in which the grinder is mounted movably supported on said frame whereby the grinder may be given a bodily movement independent of the frame, of a drivinggear connected with said bearings for giving the grinder a periodic bodily movement and a work-support for carrying the work presented to the grinder; substantially as described.

2. In a beveling-machine, the combination with a rotary grinder, a pivoted grinderframe,bearings in which the grinderismounted movable toward and from the axis of the frame, of a drive-shaft, gearing intermediate the shaft and grinder for rotating, the latter, gearing intermediate the shaft and bearings for moving the-grinder toward or from the axis of the frame, and a work-support for the work presented to the grinder; substantially as described.

3. In a beveling-machine, the combination with the rotarygrinder, the vertically-movable frame in which the grinder is journaled, the drive-shaft and gearing intermediate said shaft and grinder for rotating the latter, of an elevating mechanism for the frame embodying gear connections with the drive shaft whereby said frame is elevated periodically and a work-support for the work presented to the grinder; substantially as described.

4. In a beveling-machine, the combination with the rotary grinder, a pivoted grinderframe in which the grinder is journaled, a drive-shaft forming the axis for said frame, gearing intermediate the drive shaft and grinder for rotating the latter, a fixed support and an eccentric on the frame cooperating with the support to form an elevating mechanism for the frame, of gearing intermediate the eccentric and drive-shaft whereby the frame will be elevated periodically and a work-support for the work presented to the grinder; substantially as described.

5. In a beveling-machine, the combination with a rotary grinder, a vertically-movable grinder-frame, and hearings in which said grinder is journaled, movable longitudinally on said frame, of an elevating mechanism for the frame and mechanism for moving the said bearings connected for simultaneous move- ICC ing mechanism and hearings in which the grinder is journaled whereby the grinder is' simultaneously rotated, and moved bodily in a diagonal direction, and a support for the Work presented to the grinder; substantially as described.

7. In a bevelingmachine, the combination with the pivoted frame, the grinder, the longitudinally-movable shaft on which the grinder is mounted and the hearings in which the shaftis journaled movable on the frame transversely of the axis of the shaft, and a driveshaft, of gearing intermediate the drive and grinder shafts for rotating the grinder, gearing intermediate the drive-shaft and bearings for moving the latter on the frame and an elevating mechanism for the frame operated by the gearing between the bearings and driveshaft; substantially as described.

8. In a-beveling-machine, the combination with a Work-support, of a pivoted frame, a grinder journaled in said frame, an adjustable eccentric supporting said frame and driving-gearing for rotating said adjustable eccentric; substantially as described.

9. In a beveling-machine, the combination with a Work-support, of a pivoted frame, a grinder journaled in bearings movable on said frame, an adjustable crank for moving said bearings, and a driving-gearing for ro-. tating said crank; substantially as described.

10. In a beveling-machine,the combination with a work-support, of a pivoted frame, a grinder journaled in bearings movable on said frame, an adjustable crank for moving the said bearings, an eccentric for supporting the frame and a driving-gearing for rotatin g said crank and eccentric simultaneously; substantially as described.

11. In a beveling-machine, the combination with a work-support, of a pivoted frame, a grinder journaled in bearings movable on said frame, an adjustable crank formoving the said bearings, an adjustable eccentric for supporting the frame and a common drivinggearing for said crank and eccentric; substantially as described.

12. In a beveling-machine, the combination with a work support, a pivoted frame, a grinder journaled in said frame and an eccentric journaled in the frame, of an adjustable support with which the eccentric cooperates to support the frame and a drivinggearing for the eccentric; substantially as described.

13. Inabeveling-machine, the combination with the work-support, a pivoted frame and a grinderjournaledin bearings movably mounted on the frame, of a drivinggearing for moving said bearings embodying a drive shafthavingan axiscoincidentwiththe axis of the frame, whereby the frame may be swung on its axis without breaking the driving connection for the bearings; substantially as described.

CHARLES L. GOEHRING. WILLIAM TROCI-IE.

Witnesses:

H. S. FALOR, PHEBE FALoR.. 

